This ferrofluid magnetic liquid interactive toy will put boredom to bed in a visually striking way. Each small container comes with 3-mL of ferrofluid that will react in eye-catching ways when you place it close to a magnetic field.
This ferrofluid magnetic liquid interactive toy will put boredom to bed in a visually striking way. Each small container comes with 3-mL of ferrofluid that will react in eye-catching ways when you place it close to a magnetic field.
